<?xml version="1.0" encoding="utf-8"?><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/"><dc:title xml:lang="en">armillary spheres</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31430184</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:56:04</dcterms:created><dcterms:isPartOf xsi:type="dcterms:URI">http://AATesaurus.cultura.gencat.cat/aat/getty_en</dcterms:isPartOf><dcterms:isPartOf xml:lang="en">Tesaurus d&apos;Art i Arquitectura</dcterms:isPartOf><dc:format>text/html</dc:format> <dcterms:alternative xml:lang="en">armillary sphere</dcterms:alternative> <dcterms:alternative xml:lang="en">sphere, armillary</dcterms:alternative> <dcterms:alternative xml:lang="en">spheres, armillary</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ Skeleton models of the celestial sphere, generally having the earth at the center, consisting of a framework of rings depicting the relative position of such astronomical elements as the celestial equator, the ecliptic, the zodiac, and the planets. They were first developed by the ancient Greeks and used especially during the 14th through 16th centuries as an aid to navigation. ]]></dc:description></metadata>